Refrigerator-door-operating mechanism



Nov. '8, 1927.

S. B. HASELTINE REFRIGERATOR DOOR OPERATING MECHANISM Filed NOV. 15,}?25

2 Sheets-Sheet 1 Nov. 8, 1927.

s. B. HASELTINE REFRIGERKTOR DOOR OPERATING MECHANISM 2 Sheds-Sheet 2Filed Nov. 16. 1925 z a J j a W u ifl Y n m a W6 ii A M n y l z I f H Hm Q W w Ca ya 4 Z fl d Patented Nov. 8, 1927.

CHICAGO, ILLINOIS CORPORA'IION OF DELAWARE." l

REFRIGERATOR-1)OQRQPEEA'IING MECHANISM.

' Application filed November 16, 1925. Serial No. 69,221,

This invention relates to improvements in refrigerator car dooroperating mechanisms. One object of the invention is to provide a simpleand efficient arrangement of door operating mechanism, especiallyadapted for refrigerator car doors, for forcing the doors tionfunctioning as an operating crank arm,

in conjunction with a transmitting element connected to said crank armand having an actuating portion movably mounted .on' said I door andconfined to a path of movement substantially parallel with the planeofthe face of the door, saidactuating portion being adapted to co-actwith a fixed keeperv secured to the door frame,

Other objects and advantages of the invention will more clearlyappearfrom the description and claims hereinafter following.

, In the drawings forming a part of this specification, Figure 1 is aside elevational view of a portion of a refrigerator car, showing myimprovements in. connection therewith. Figure 2 is an enlarged,vertical, sectional view, partly broken away, correspondingsubstantially. to theline 22 of Figure 1. Figure 3 isla horizontal,s'ectional view, corresponding substantially to the lined-+3 ofFigure 1. a Figure 4c is a'horizontal, sectional view, correspondingsubstantially to the line 44 of Figure 2, through the actuating portionof the transmitting member, showing in detail the lower keeper, andillustrating the position ofthe actuating portion when the door is fullyclosed, and after the same has' been forced open to clear theinsulation. And Figure'5 is a fragmentary enlarged elevational view ofthe lower crank arm, bearin brackets, actuating member, and associatedkeeper, as shown in Figure 1.

In said drawing, the car is shown as'pro- 'vided with a door frame 10and two pivoted doors 11 and 12 having meeting beveled edges in theusual manner. As, is customary in refrigerator cars, insulation orpacking is employed between the meeting edges of the door faces andaround the sides and top.

The doors ll and 12 are mounted to swing about vertical axes, beingsupportedby suit able hinges 13.,

a islet f ES Aim STACY B. HASELTI1\TE, or crrrciaco, rumors, Assrenon T0w. n. Minn-R, inc, or

'Asshown, the'improved door operating I mechanism comprises, broadly,an, operating shaft A provided with two end castings B-wB, and anoperating handle C upper and lower bearing brackets D-D; a pair of upper and lower actuating members 'E-E; and a pair oflupper and lowerkeeperSllP-F. The operating shaft is} preferably in the form of a flatbar of rectangular cross-section, having the handle or lever C pivotedthereto by a pin 20. i

The castings Bare disposed respectively at the upper and lower ends ofthe shaft A.- gflach of the end castings 13- -13, asishown. ispreferably in the form of a crank having a cylindrical journal portion21 alined with the axis of the operating shaftand an offset end portionor crank 22. 'Each'casting B is formed with a head 23, attheflinner endof the journal portion 21, said head being vertically slotted asindicated at 24l to receive the corresponding end of the shaft A,towhich it is fixed by'rivets 25 or other suitable securing means.

The bearing bracketsD D, which are of slmllar construction, arerespectively mounted at the upper and lower edges of the. door" 12adjacent the free forward edgethereof;

Each of the brackets D comprises a housing including a plate-like baseportion 26, havingformed on' the outer face thereof adjae' cent theinner edge, a lug 27 having a concave bearing 'seat 28, for thereception of the ournal p0rt1on2l of the InemberB, A strap 29' isprovided which has a central looped portion 30 which co-operates withthe tendingwall 33, which forms the bottom wall of a housing adapted formounting the actuating member Said housing includes an outer-vertlcally}disposed wall 34;,

a rear wall 35, a top wall 36, and a forwardwall 37, the top wall 36preferablyterminating a considerable distance from the for-v 'ward wall37,'and the front "wall 34 terminating a considerable distance from saidforward wall, the front wall 34 and the front edge of thebottom wall 33diverging outwardly to provide an increased space .be tween the wail 26and the front extremity of the bracket, as indicated at 38. Theoutermost wall 33 of the bracket is provided with an elongated slot 39,which extends sub stantially parallel with the plane of the face. of thedoor 12', the bottom wall 33 being provided with an upstanding flange 40on its outer side bounding said slot. The actuating 'member's E are twoin number, and

' each comprises an elongated plate-like body member 4lhaving anactuating portion 42 slidably disposed inthe slot 39 and extendingthrough said slot and outwardly be' yond the adjacent edgeof the doorl2. I The forward portion of .the member 4l rests upon the wall 33, andis'provided with an opening'for the reception ofthe crank end 43,

which is.

section. I I q I I The upper and lower keepers FF, which are mounted onthe lintel and threshold of the door frame, are of substantially similarpreferably of cylindrical crossconstruction, each comprising avertically disposed plate-like portion 44 by which the keeper is boltedto the car. "Each keeper is provided witha slot 45, the defining wallsof the inner portion. 46 of which are disposed substantially parallel tothe plane of the face ofthe doorframe, andthe walls of theremainingportion of said slot eX- tending outwardly at an angle totheplane of the face of the car frame as indicated 3 at 47, the slots beingadapted for the reception of the actuating portion 42, of each actuatingmember E. The plate 44' of the lower keeper F is extendedto the left, as

seen in Figure 1, beyond the edge of the door 11, and has pivotallymountedthereon a latch member 48 adapted to co-a'ct with a plate 49fixed to the door 11 adjacent the lower outer corner thereof. The latch48 serves to retain the door 11in position when closed and to preventthe doors from jamming inthe door opening when opening the right handdoor. The handle 01s adapted to belocked as shown in Figure 1, by any Ition 43 fixed thereto.

in a right hand direction, carrying therewith the actuating portion 42on the'plate, which is confined to movement parallel to the plane of theface of the door 12 by the walls of the slot 39, said actuatingportionengaging the cam walls of the slot 45 in the related keeper, therebyforcing the door out-- wardly until the actuating'portions 42 may beretracted from the open ends of the slots, and the door swung to fullyopen position. YVhen it is desired to. close the doors, the door 12 isswung inwardly until theactuating portions 42 are aligned with the openends of the slots 45 in the keepers F, after which a movement of thelever C away from the door 12, by reason of the corresponding movementof the crank, will cause travel of the actuating member D in a left handdirection, the actuating portion 42 traveling along the inclined face inthe slot and serv'- ing to closethe door, the portion 46*of the slotwhich is disposed substantially parallel to the plane of the face of thedoor frame,

providing means which overcome the ten-- dencyof the actuating portionto move out of the inclined slots, 5 v

By the above described arrangement, it will be appreciated that thearcuateanovement of the cranks which furnish the power for'operating thedoor mechanism is transformed. or converted into movement substantiallyparallel with the'face'of the door- 1. In a. door operating mechanism,the

combination with a member providing a door openingand a pivoted door; ofmeans for effecting opening andclosing movements of said door, saidmeans including a rotatable shaft havingfcrank portions thereon; keepermeans affixed to the door frame and having camming faces; meansincluding an loo actuating portion adapted to co-act with the camfacesof said keeper means; and means for transmitting the movement of saidcrank.

means to said actuating portion, saidmeans being arranged to convert thearcuate movement of said crank into rectilineal movement of saidactuating portion. I i V 2. In a door operating mechanism, thecombination with a member providing a door opening and a pivoted door;of'means for effecting opening and closing movements of said door,including an actuating element adapted to travel transversely of saiddoor in a. path substantially parallel with the plane of the. face ofsaid door; independent operating means held against travel withreference to'said door and arranged to impart operative movements tosaid actuating.

element; and keeperzmeans affixed to said door frame and havingcamfacesadapted to be-engaged bysaid actuating portions.

3. In door operatingmechanism,nthe

combination with ainember'providing a door. 7 opening and a pivoteddoor; of means for 'effecting openmg and closing movements of said door,including keeper means mounted on said member; an actuating elementslid-ably mounted on said door and arranged to move in a path"substantially parallel to the plane of the face of said door,said'actuating portion being adapted to co-operate with said keepermeans to effect opening and closing movements of said door; and meansfor imparting sliding movements to said actuating element.

a. In a refrigerator car having a pivoted side door, the combinationwithan operating shaft rotatably mounted on said door, said shaft beingprovided with offset crank portions; an elongated actuatingmember havingone portion pivotally-connected to said crank means and an actuatingportion pivotally and slidably mounted on said door, said actuatingportion extending outwardly beyond the edge of said door; and keepermeans connected to the car and adapted to co-operate with said actuatingportions to effect opening and closing movements of said door.

5. In a refrigerator car having a pivoted side door, the combinationwith brackets secured to said door adjacent the top and bottom edgesthereof, each of said brackets being provided with a supporting wallextending substantially horizontally outwardly from the face of saiddoor, each of said walls being provided with a. slot arrangedsubstantially parallel with the face of the door; actuating membershaving actuating portions pivotally and slidably mounted in said slots,and body portions bearing against said supporting walls; a shaftrotatablymounted in said brackets, said shaft being provided with offsetcrank portions pivotally connected to the body portions of saidactuatwith said actuating portions, said keepers having cam surfaces,the outer portions of which extend at an angle to the face of the doorframe, and the inner portions .of-whichexte'ndl substantially saidframe.

. i7; Inna door opening. device, in combi; nation with a door: and aSLII'IOUHClIIIgQCQSw mg,fla rock shaft rotatably mounted on, one

of said structures, acam track on the other ofsaid structures,iaguidewayin coacting relation to said track andmounted on thestructureswvhich, carries the shaft, a mov-.

able cross connection operating jointly within said cam and saidtrackway, and means. actuated by the'shaft for imparting move ments tosaid cross connection for causing the same to ride upon the cam trackand impart an opening movement through the guideway to the door,substantially as described.

8. In a door opening device, in combina tion with a door and asurroundlng casing,

said structures, a cam track on the other of said structures, a guidewayin coac'ting rela tion to said track and mounted on the structure whichcarries the shaft, a movable cross connect-ion operating jointly withinsaid cam and said trackway, and means actuated by the shaft forimparting movements to said cross connection for causing the same, to

ride upon the cam track and impart an opening movement through theguideway to the door, a] handle connected with said parallel'to the faceof,

a rock shaft rotatably mounted on one of shaft, and a keeper forholdingsaid han- V dle locked in proximate relation to said door when the crossconnection is retracted along the cam, substantially as described.

9. In a door opening device, in' combination with a door and asurrounding casing, a rock shaft'rotatably mounted on one of saidstructures, a crank on the end of the rock shaft, a cam track on theother of said structures, a guideway in co-acting relation" to saidtrack and mounted on the structure which carries the shaft, a movablecross connection operating jointly within said cam and said trackway,and means-actuated by the shaft crank for imparting movements to a saidcross connection for causing the same to ride upon the cam track andimpart an opening movement through the guideway to the door,substantially as described.

10. In a door opening device, in combination with a door and asurrounding casing, a rock shaft rotatably mounted on one of saidstructures, a crank on the end of the rock shaft, a cam track on theother of said structures, a guideway'in co-acting relation to said trackand mounted on the structure which carries the shaft, a movable crossconnect-ion operating jointly within said cam and said trackway, andmeans actuated by the shaft crank for imparting movements to said crossconnection for causing the same to ride upon-the cam track and impart anopen ing movement through the guideway to the door, a handle connected.with said shaft, and a keeper for holding said handle locked inproximate relation to said door when the cross connection. is retractedalong the cam,

substantially as described.

- 11. In a door opening device, in combination With a door and asurrounding door cas- 5 ing, a shaft rotatably mounted on the door,

cross connection between the cam trackway and the guideway, a crank onthe shaft, and

a connection'betWeensaid crank and said 15 cross connection forimparting travel to the latter, to cause the. same to ride up on the camtrackway for opening the door substantially as described. Y

In Witness that I claimthe foregoing 1 have hereunto subscribed my namethis 13thday of November, 1925.

. STACY B. HASELTINE.

